Q. In a purely resistive ac circuit, the current
A) Lags behind the $e$.m.f. in phase
B) Is in phase with the $e$.m.f.
C) Leads the $e$.m.f. in phase
D) Leads the $e$.m.f. in half the cycle and lags behind it in the other half
Explanation
The correct answer is Option B: Is in phase with the $e$.m.f..
A detailed explanation for this question is being prepared.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.